A statistical program is recommended.A certain company has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows.YearHYear Quarter 1 Quarter 231234567123412Quarter Sales34127310415202325287151041018(a) Deseasonalize the data. (Round your answers to three decimal places.)AdjustedSeasonalIndex15715262315121826283436400.9241.3531.1080.6160.9241.3531.1080.6160.9241.3531.108Quarter 3 Quarter 40.616101523252830354DeseasonalizedSales71218212027Total YearlySales36507691106111130 1234123412341234202825182334282125363020284035270.9241.3531.1080.6160.9241.3531.1080.6160.9241.3531.1080.6160.9241.3531.1080.616Compute the linear trend regression equation for the deseasonalized data. (Let t = 1 denote the time series value in quarter 1 of year 1; t = 2 denote the time series value in quarter 2 of year 1;... and t = 28 denote the time series value in quarter 4 of year 7. Round your numerical values to two decimal places.)T₂ =(b) Use the results part (a) to develop a quarterly forecast for next year based on trend. (Round your answers to two decimal places.)forecast for quarter 1forecast for quarter 2forecast for quarter 3forecast for quarter 4(c) Use the adjusted seasonal indexes given in part (a) to adjust the forecasts developed in part (b) to account for the effect of season. (Round your answers to one decimal place.)forecast for quarter 1forecast for quarter 2forecast for quarter 3forecast for quarter 4Activate WindowsGo to Settings to activate Windows.

Here, we have the given the sales data of different quarters of different years.

Answered: A certain company has been an…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Pinnacles. 2. The table below gives the number of Starbucks in the U.S from 1987 to 2001. Time (yr) 1987 1989 1991 1993 1995 1997 1999 2001 Starbucks 17 55 116 272 676 1412 2135 4709 a. Use the table to estimate when the number of Starbucks reached 1000. b. Use the regression capabilities of your calculator to find a reasonable model for this data. Define your variables. 10 c. ALGEBRAICALLY determine when the number of Starbucks reached 1000. o i nislaxo hns 1 Magnitude is based on measurement of the maximum motion recorded by a seismograph. The most commonly used scales for measuring magnitude are local magnitude (ML), referred to as "Richter magnitude " surface-waye magnitude (Ms) hodyowave mogni
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Question 3/10 > NEXT Look at this scatterplot. S700 $600 S500 $400 $300 S200 $100 $0 10 12 14 16 18 20 22 24 26 Temperature °C Based on the data in the scatterplot, what would you expect the sales to be when it is 28 degrees? A) $500 B) $600 c) $700 D) $800 Sales

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